﻿///////////////////////////////////////////////////////////////////////////////
//
//  This source is part of the  "Managed Task Framework.NET Runtime"  (MTF.NET Runtime).
//
//
//  Copyright (c) 2011, Multicore Consulting Limited (UK)
//  All rights reserved.
//  http://www.multicoreconsulting.co.uk
//
//  Redistribution and use in source and binary forms, with or without
//  modification, are permitted provided that the following conditions
//  are met:
//
//  -  Redistributions of source code must retain the above copyright
//     notice, this list of conditions and the following disclaimer.
//  -  Redistributions in binary form must reproduce the above copyright
//     notice, this list of conditions and the following disclaimer in
//     the documentation and/or other materials provided with the
//     distribution.
//  -  Neither the name of Multicore Consulting Limited nor the names of
//     its contributors may be used to endorse or promote products
//     derived from this software without specific prior written
//     permission.
//
//  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
//  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
//  COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
//  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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//  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
//  ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
//  POSSIBILITY OF SUCH DAMAGE.
//
///////////////////////////////////////////////////////////////////////////////

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace MTFOrg.MTF.MTFRuntime
{
    /// <summary>
    /// Represents a connection point on a task
    /// </summary>
    public class ConnectionPoint : IConnectionPoint
    {
        // Internal
        protected ITask m_ParentTask;
        protected ConnectionList m_Connections;

        /// <summary>
        /// The parent task that owns this connection point
        /// </summary>
        public ITask ParentTask
        {
            get { return m_ParentTask; }
        }

        /// <summary>
        /// List of connections made to/from this connection point
        /// </summary>
        public IOrderedGroup<IConnection> Connections
        {
            get { return m_Connections; }
        }

        /// <summary>
        /// Constructor
        /// </summary>
        /// <param name="parentTask">Parent task</param>
        public ConnectionPoint(ITask parentTask)
        {
            Construct(parentTask);
        }

        /// <summary>
        /// Copy constructor.
        /// </summary>
        /// <param name="other">Connection point to copy from</param>
        public ConnectionPoint(ConnectionPoint other)
        {
            Construct(other.ParentTask);
        }

        /// <summary>
        /// Constructs the connection point
        /// </summary>
        /// <param name="parentTask">Parent task</param>
        /// <param name="propConstraints">Property constraints</param>
        /// <param name="prototype">Prototype</param>
        private void Construct(ITask parentTask)
        {
            m_ParentTask = parentTask;
            m_Connections = new ConnectionList();
        }
    }
}
